One thing for sure is that the bank will want to know the specific reasons for the removal request as the next-to-kin. This document provides instructions for a scam known as the "Next of Kin" or "N.A death claim letter format for bank is straightforward. Moreover, you just have to submit documents like a death certificate, ID proof, etc. Next of Kin Letter is a document used to confirm who is the closes relative of the deceased that are still living. Step 2 - Complete the Document. Click on the link(s) for the forms you'd like to download. In general, Texas has very few official legal forms. This is why you will not always find a free fill-in-the-blank form for your situation.